Fluid dispensing device with reduced opening force
AssigneeOpw Fueling Components, LLC
InventorJohn M. Gray
Life of this patent
Estimating the term…
Abstract
A nozzle for dispensing fluid including a nozzle body having a fluid path therein through which fluid is configured to flow in a downstream direction. The nozzle further includes a valve having a valve body positioned in the fluid path and movable between a closed position wherein the valve body sealingly engages a valve seat to generally block fluid from flowing therethrough, and an open position wherein the valve body is spaced away from the valve seat to generally allow fluid to flow therethrough. At least part of a surface of the valve body positioned upstream of the valve seat is configured to be fluidly isolated from a pressure of fluid in the fluid path upstream of the valve seat when the valve is in the closed position.
Claims29
A nozzle for dispensing fluid comprising:
- a nozzle body including a fluid path therein through which fluid is configured to flow in a downstream direction;
- and
- a valve including a valve body positioned in the fluid path and movable between a closed position wherein the valve body sealingly engages a valve seat to generally block fluid from flowing therethrough, and an open position wherein the valve body is spaced away from the valve seat to generally allow fluid to flow therethrough, wherein at least part of an outer surface of the valve body positioned upstream of the valve seat is configured to be fluidly isolated from a pressure of fluid in the fluid path upstream of the valve seat when the valve is in the closed position.
A nozzle for dispensing fluid comprising:
- a nozzle body including a fluid path therein through which fluid is configured to flow in a downstream direction;
- and
- a valve including a valve body positioned in the fluid path and movable between a closed position wherein the valve body sealingly engages a valve seat to generally block fluid from flowing therethrough, and an open position wherein the valve body is spaced away from the valve seat to generally allow fluid to flow therethrough, wherein the valve body includes an opening extending therethrough having a first end in fluid communication with at least part of the fluid path on a geometric upstream side of the valve seat and having a second end in fluid communication with the fluid path on a geometric downstream side of the valve seat when the valve is in the closed position, wherein the valve is configured that first and second ends of the openings are both in fluid communication with the fluid path located downstream of the valve seat when the valve is in the closed position.
A nozzle for dispensing fluid comprising:
- a nozzle body including a fluid path therein through which fluid is configured to flow in a downstream direction;
- a valve including a valve body positioned in the fluid path and movable between a closed position wherein the valve body sealingly engages a valve seat to generally block fluid from flowing therethrough, and an open position wherein the valve body is spaced away from the valve seat to generally allow fluid to flow therethrough;
- and
- a cavity positioned geometrically upstream of the valve seat and configured to be fluidly isolated from fluid in the fluid path upstream of the valve seat when the valve is in the closed position, wherein at least part of the valve body is in fluid communication with the cavity.
A nozzle for dispensing fluid comprising:
- a nozzle body including a fluid path therein through which fluid is configured to flow in a flow direction;
- and
- a valve including a valve body positioned in the fluid path and movable between a closed position wherein the valve body sealingly engages a valve seat to generally block fluid from flowing therethrough, and an open position wherein the valve body is spaced away from the valve seat to generally allow fluid to flow therethrough, wherein the nozzle is configured such that, when the valve is closed, at least part of the fluid path located upstream of the valve seat with respect to the flow direction and in direct contact with the valve body overlaps in a radial direction with at least part of the fluid path located downstream of the valve seat with respect to the flow direction and in direct contact with the valve body.
Dependencies are inferred from the claim text.